Miner&#39;s drill



May 6, 1930. P. I EsKo 1,757,725 v MINER's DRILL Filed-July 10, 1928 A'Patented May `6, 1197370 MINERS DRILL,

Application mea July 1o, 1928. serial No. 291,610.

This invention relates generally to tools, and has more particular reference to a novel miners tool. y Y j j The invention has vfor an object the `provision of a device of the class mentioned,

which is of simple durable constructiomdesirable and eiicient in action, and which can be manufactured and sold at a reasonable cost.

vThe invention proposes the use of a frame with gears and a handle arranged for rotating-V a shank rotatively supported in a bearing con' nected by a universal joint on a support'rod.

The arrangement should be' such that .the

shank may bemoved in any direction relative to the support rod, and rotated by manipulation of the said handle.

For further comprehension of the inven-` tion, and of the obj ect and advantages there# of, referencewill be had'tofthe following dethe appended claims in which the. various novel features of the invention are more particularly set forth;

material part of this disclosure: Y

Fig. 1- is a perspective View of the use.

Fig. 2 is a plan viewof the device. 4 Fig. 3 is an end view looking in the direction of the line 3-3 in Fig. 2. j Y

Fig. 4 is a vertical sectional view, taken on the line 4 4 of Fig. 2. Y Fig. 5 is a similar view, but with the top half of the shank bearing raised.r Fig. 6 is a perspective view of the handle used in the device.

device. in

Fig. 7 is a perspective detail view ofraV counterweight used in balancing the frame of V4.o thedevice.

endl?) is the hub portion 15 of a handle hav,

ing spaced handportions 16 and 17 for accommodating the hands of a userV as 'shown in i Fig. 1 for manual turning of the gear-.114.`

' 50 One of the ends of the frame-10 ijs/provided In the accompanying drawing, forming `af with a boss 1S for rotatively supporting shank 19, together `with the opposite end of the frame, and the front portion of the shank,

is threaded as .indicated by numeral 2 0, A pinion' 21 is engagedV on the mesheswith the gear 14. Y Y f The shank-19 engages in a bearing V22 `connected by a luniversal joint connectionwith-,a

shank andi bearing 22 4has projecting pegs 25 rotativeliy mountedfin the arms ,of thev U-shaped member. n' The vU-shaped member. 24 hasa project-fY f support rod 23. kThis universal joint c'onnec-V .tion comprises a U-shaped member 24, andthe? ing pegV 26 rotatively engaged in thev support arm 23. VThebearing.22 maybe turned Aingl various horizontal position'sby turning the ing 22 may be turned in various vertical positions by turning about the pegs 25. The beari ing 22 includes a pivoted top section 27 shown scription and accompanying drawings,` and to in raised position in Fig. 5. This section has ing the pivoted section 27 in closed position:V

. The frame`10 is formed with V'an aperture 31 forv oilingtheV shank 19, andthe boss-18 is ormedwith an oil aperture 32'for thesame Y reason. The bearing 22 has an oil aperture 33, landthe boss 11 Vhas an oil aperture 34.'

'A wingmember 35 and a securing pin 36 is engaged Von the plain endv of the shank 19. Formedin the front side` of the' frame 10 Uvshaped'm'emberabout peg'26,"and the bear-` j `is a slot 37, and a peg 38 is slidably `mountedv in this slot. A11 arm .39 is pivotally connected -at one of its ends, as at40 yto theframe 10 and is forcedinto engagement byl a latch 41 pivotally mounted on theframelO with the rear end of thepeg 38 for holdingthe peg 38 in adjusted positionsin the slot. A counter# weight 42 is4 connected with a chain 43 the links` of which are engageable on` the peg 38.v

The counterweight'may be supported at any desired height as determined'by the particular link of the chain which is engaged on the peg`38, and the' peg may be positioned alongthe sideof the frame to a positionbest adaptedjfor the counterweight to counterbalance the framelO for reason of the handle portionsl and 17 being on one side thereof.

The forces set up by one turning the handle Y are the ones which need counterbalancing and these forces vary aceordingto the individual operating of the device. Since'the counter#A f5' balancing is a matter of individual taste the mass ofthe eounterbalance and the position of the. peg 38 must be determined by the individal himself. Y n

`IVhile I have shown and described the'pre-v 10 ferred -embodiment of my invention, it is to be understood that I do not'l-imitmyselfto the precise construction herein disclosed and the right is reserved to all changes andmodi- Viications coming Within the soope of the -in- 15 vention as defined in the appended Claims. `-IIa'vin'g'r:thus describedmy invention what y I elaimjasnew and desire'tosecur'e by United StatesLetters Patenty is: Y l

vl. :"Infadevice--of the class deserbd a y V12'rame orlsupporting the lshank of'adrill Vtooland provided at oneside'with a handle for operating the tool and the "other side of Y fthe `frame lbeing formed Withva slot', a peg for Supporting a Vcou'ntervveight 'Y slidably mountedi'n the slot, and anarm pivotally Vmounted on the Vframe and arranged for en- Y'gagingftherear "of the peg for holding it-in fadjustedpositions Y V A f "In a device'of the olassfdeseribed, a g `rame"for 'supporting the shank of ardrill "toola'nd providedat one 4side vvth a handle "for operating "the tool andithe othef'side'o the frame being4 formed with aslot, a peg `for' 35 'supportinga ooiuiter'vveight slidably mounted Y in the slot,a'na'rm pivotallymountedonthe 1 y Afra-me and arranged for engaging thep'lrearof v thei peg for holding it in adjusted positions, ,and ailatch vfor holding the arm in engaging ,4:0position. v Y K Y In testimony WhereofI' have affixed my Y-signature s A n Y., t

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